Looking at the HL website. Based off the descriptions, I'm leaning toward the B-Side.

For those who have not ridden a LF Harley. Its very fast, straight up 3 stage pop, some what loose. The Franchise is a continuous, which is not what I prefer. The Murray looks close, but I'm kind of in between sizes; 137 or 142 are the options.

I'm guessing he is going to a Hyperlite Experience event. I went here in Nebraska this week. I had a great time riding with Kyle Alberts. I demo'd the Murray and was really impressed. I felt comfortable on the board right away. I think it is probably a bit looser than the Harley, but it had great pop. I liked the System bindings a lot more than I thought I would as well.

Brian, try the Franchise. You will be surprised at how hard it pops and how fast it is on the water. I always rode aggressive three stage boards and love how the Franchise performs. It is an awesome shape.

My son has ridden a Harley the last two years and demo'ed a Byerly AR1 at wake camp recently. He really liked it, if they are available I will throw that one in as well as an option. He said it was really fast (comparatively) and had plenty of pop, and the landings were much softer. He weighs around 150 and rode the 53" model (135CM).

I was at the Hyperlite Experience today with Jimmy behind the G25 and it was sick. I was leaning toward the AR-1, but went with the Webb and I absolutely loved it. My buddy rode the Franchise and he liked it so much he's thinking about getting one. If there was another Hyperlite Experience near me I would go again. It was epic, wakeboard and surf behind a G25 with a pro rider, choose any Hyperlite or Byerly gear you want to ride and a swag bag all for $30 is a steal.

I ride a LF Harley and to compare the board to HL boards I've ridden would be between the Franchise & B-side. Both have great pop, but I think the franchise is a lot faster than B-Side. That my .02.
I would love to ride marek and Murray in the future

I love both the Marek and the Murray. I really like tight boards so I took some P-Wings and put them on my Marek and that board is super tight, its also a bit less forgiving because of it too. Both have great pop, but I think the Murray is more forgiving and a good starting point. The point of the Hyperlite Experience is to try new things, so I wouldnt worry too much about trying to find a board that is exactly like your Harley. Instead, try to find a board that you like, you may find that you love something completely different that you have never tried before.

I haven't ridden a Harley but I can tell you the marek is going to pop a lot harder than the franchise and may be faster as well. The franchise will be smoother on edges and the pop may be even easier to control

If you can harness the pop of the AR board, check it out, the thing is a rocket for launching straight up pop! The Marek is always easy choice, fast & a predictable pop off the wake both are going to be similar to the Harley.